Finding the Fourth Proportional to 1,081.96, 1,493.25 and 662.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,081.96 : 1,493.25 = 662.53 : x
2. Step 2: Convert to fraction form
   1,081.96/1,493.25 = 662.53/x
3. Step 3: Cross multiply
   1,081.96x = 1,493.25 × 662.53
4. Step 4: Simplify right side
   1,081.96x = 989,322.92
5. Step 5: Solve for x
   x = 989,322.92/1,081.96
6. Step 6: Final answer
   x = 914.38